Miter-box.



GL LLNYSTROM.

MITBR' Box. Y PPLOATION FILED NOV. 11, 1908 930,684. Patented Aug.10,1909.

f//J #vain/frs rrrurnn srATEs PATENT orties.

CARL L. NYsTRoM, or MiNNEAPoLIs, ifiirnvnsorn.l

MITER-BOX.

Application filed November 11, 1908. Serial No. 462,028.

To all whom it may concern:

Be it known that I, CARL L. NYsTnoM, of Minneapolis, Hennepin county,Minnesota, have invented certain new and useful Improvements inMiter-Boxes, of which the following is a specification.

My invention relates to a carpenters miter box and the object of theinvention is to provide a folding box capable of being coinpactlycollapsed and placed in a carpenters chest and having means `for jadjustment whereby it can be readily adapted for forming any desiredmiter joint.

My invention consists generally in various constructions andcombinations, all as hereinafter described, and particularly pointedYout in the claims. 1

In the accompanying drawings forming part of this specification, Figure1, is a side view of a miter box embodying my invention, Fig. 2, is aplan view of the same, Fig. 3, is an end view, F ig. 4, is a sectionalview illustrating the means for adjusting the side wall and bottom ofthe box to obtain the desired angle between them, Fig. `5, is atransverse sectional view through the saw guide, Figs. 6, and 7 aredetail views, Fig. 8 is an enlarged detail in section showing the rollerguides for the saw.

In the drawing, 2 represents the bottom of the box and 3 the side wallboth composed preferably of thin strips of wood glued or otherwisesecured together with' the grain running in opposite directions, asusual in a construct-ion of this kind, to prevent as far as possible,warping or twisting of the wood. The bottom and side wall are providedwith hinges 4, one leaf being secured to the bottom and the other to thewall and counterv sunk in the wood to allow the wall to be folded downflat upon the bottom whenV the boX is collapsed. The wall is providedwith a recess 5 wherein slotted wedges 6 are arranged and held in placeby ascrew 7. These wedges are capable of adjusting upon one another andcontacting with one leaf of the hinges, allow the relative position ofthe bottom and side wall to be changed and the angle between themmaintained at ninety degrees or a less degree if desired. When the sidewall is swung in Vover the bottom plate of the boX, the screw 7 will beaccessible for the purpose of adjusting the wedges.

Any desired number ofjthese wedges and Specification of Letters Patent.

Patented Aug. 10, 1909.

sbcrews may be provided in the wall of the The saw guide is mounted inthe boX Wall in a vertical recess 8 formed therein and plates 9 and 10are secured to the wall on each side of the recess. The plate 9 has anoutwardly curved middle portion 11 and the plates 1 0 have inwardlyturned flanges 12, the edges of which form guides for the verticaltubular portion 13, which carries hori- Zontal jaws 13. This tubularportion has vertical 'slots 14 and 15 therein between which verticalwooden rollers 1G are mounted, said rollers being spaced apart to allowvthe insertion of the saw blade between them and the said rollersserving as guides for the saw blade during the operation of forming themiter. The tubular portion 13 is capable of rotary` movement in itsrecess and the slot 15 is of sufficient width to allow the saw to beadjusted at any desired angle in vided with a plate 1S and a curved bar19 is adapted to rest on said plate and slide thereon and has its endspivoted on the tubular portion. rhis bar is provided with a series ofnotches 2O adapted to receive a pin 21Vmounted on the plate 18 andwhereby the bar and tubular portion are held against premature rotation.The bar is suitably graduated to indicate the angle of the miter ordegree obtained by the adjustment of the rotary portion of the guide. Toadjust the guide, the tubular portion is raised slightly until the bar19 clears the stop pin when rotation may be eifected until the guide isset in position to obtain the desired angle on the miter joint. 7Whenthe device is not in use, the guide may be withdrawn entirely from itssupport, the graduated bar folded down against the tubular portion andfolded, can be packed in a carpenters chest.

I claim as my invention z- 1. A miter box, Vcomprising a bottom plateand side walls hinged together and capable of folding one against theother and means for adjusting` the angle formed between said plate andwall"` when they are in their open or expanded position.

2. A miter box comp-rising a bottom plate Y andside wall hingedtogether, said side wall having a recess therein and wedges fittingwithin said recess and having a clamping screw and said wedgescontacting with said bottom plate and adjusting the angle formed Ybetween said plate and s ide wall.

3. A miter boX, comprising a bottom plate and a side wall, hingedthereon and having a vertical recess therein, guide plates secured tosaid side` wall and having edges projecting into said recesses, a hollowsaw guide litting within said recess between Vsaid guide plates andcontacting with the saw blade, vertical guide rollers within saidtubular portion and spaced apart and between which the saw blade isinserted.

5. A niiter box comprising a side wall, a saw guide capable of rotaryand vertical movement therein, and a graduated bar carried by said guideand having a notched edge to receive a stop on said wall.

6. A miter box comprising a side wall, a saw guide mounted therein andcapable of rotary and vertical movement, a curved graduated bar pivotedon said guide and adapted to fold down against the same when the guideis removed or rotated, said bar having a notched edge and a stop mountedon said wall and adapted to engage said edge and lock said guide againstaccidental rotary movement, said guide being rendered capable ofrotation by lifting it until said curved bar is out of engagement withits stop.

In witness whereof, l have hereunto set my hand this (3th day ofNovember 1908.

CARL L. NYsTRoM.

litnesses RICHARD PAUL, J. A. BYINGTON.

